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Sony Memory Card 128GB, UHS-II SD, CL10, U3, Max R260MB/s, W100MB/s (SF-M128/T)
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- Read up to 260MB/s UHS-II
- UHS-II Reader (MRW-S1) is needed to realize transfer speed
- Write up to 100MB/s UHS-II
- Speed class U3, Class 10
- Memory card case supplied
- File Rescue software provided via download
- Water proof and dust proof
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From the manufacturer
UHS-II SD Memory Card
With up to 260MB/s read and 100MB/s write speeds, the UHS-II delivers unparalleled performance.
Up to 260MB/s Transfer Speed
Sony UHS-II memory cards deliver fast data transfer.
Transfer high res photos and video quickly with the MRW-S1 reader writer.
Up to 100MB/s Write Speed Designed to Capture the Moment as it Happens
Efficient buffer clearing optimizing your shooting experience.
File Rescue downloadable software 
Enjoy added security and never worry about losing data or accidentally deleting important files.
UHS-II Memory cards are tested under tough shooting conditions and deliver reliable performance wherever you are.
Our cards are tough to withstand drops and shocks in hot, cold, and wet conditions so you can shoot with confidence.
Sony’s high speed memory cards were built for perfect compatibility with the powerful imaging devices used by serious photographers and professionals.
 Up to 260MB/s transfer speed; write speed up to 100MB/s. Based on Sony internal testing. Transfer speeds vary and are dependent on host device. To effectively utilize the product’s high speed capabilities, your compatible device must support UHS-II.
 File Rescue downloadable software available at www.sony.net/memorycard. Does not support data recovery for Content Protected and Game Data files. Not all data may be recoverable.
 Based on Sony internal testing, memory media is waterproof certified to IEC 60529 IPX7 standard. Actual performance may vary based on environmental conditions and usage.
 Based on Sony internal testing, memory media is durable and data will operate after drop testing from 1.5m. Actual performance may vary based on environmental conditions and usage.
 Based on Sony internal testing, memory media can operate in temperatures between -13 degrees Fahrenheit (25 degrees Celsius) and 185 degrees Fahrenheit (85 degrees Celsius). Actual performance may vary based on environmental conditions and usage.
 Based on Sony internal testing, memory media is in conformance with ISO 7816-1 X-ray screen testing. Actual performance may vary based on environmental conditions and usage.
Copyright 2017 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Features and specifications are subject to change without notice. The Sony logo is a trademark of Sony. All other trademarks are trademarks of their respective owners.
Sony UHS-II Memory Cards for photographers and camera enthusiasts who use cameras supporting SD UHS-II standard. Also compatible with SD UHS-I host devices.
Top customer reviews
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Sequential Read : 268.969 MB/s
Sequential Write : 99.091 MB/s
Random Read 512KB : 200.910 MB/s
Random Write 512KB : 0.871 MB/s
Random Read 4KB (QD=1) : 12.092 MB/s [ 2952.1 IOPS]
Random Write 4KB (QD=1) : 2.624 MB/s [ 640.7 IOPS]
Random Read 4KB (QD=32) : 14.369 MB/s [ 3508.1 IOPS]
Random Write 4KB (QD=32) : 2.904 MB/s [ 709.0 IOPS]
So, it seems to work.
ONE THING TO KEEP IN MIND: When shooting in 'Back Up Rec' slot function mode I keep getting a message that says 'Backup recording requires using two identical SD Cards.' I didn't work in that mode. But...
I only shoot in 'Relay Rec' mode. And no issues, no choking so far in that mode. I normally don't shoot in All-Intra/400mbps for my clients, but it's good to know that these cards handle the demand if I ever needed it (i.e. for a short film, feature film, etc.). You get about 20mins on one card slot of the GH5 with these 64GB cards. So you're looking at about 40mins in total for both slots. Don't get scammed by the V90 craze! It's just a cash grab, at least for All-Intra on the GH5. You'll have plenty of breathing room when shooting at any other bitrate as well.
Most recent customer reviews
It works great with my Sony A7iii and is priced right.